Mechanical movement



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. J. HELLINGS.

MEGHA1\IIGALv MOVEMENT. No. 430,852. Patented June 24,1890.

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(No Model.) 3 Sheets-Sheet 3. J. HELLINGS. MECHANICAL MOVEMENT.

Patented June Z4, 1890.

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UNITED STATES PATENT OEEICE.

JOHN IIELLINGS, OF PHILADELPHIA, PENNSYLVANIA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 430,852, dated J une24, 1890.

Application led October 4, 1889.

To all whom it may concern;

Be it known that I, JOHN HELLINGS, a citi- Zen of the United States, anda resident of Philadelphia, Pennsylvania, have invented certainImprovements in Mechanical Movements, of which the following is aspecification.

The object of my invention is to construct an improved mechanicalmovement by which weights of varying character may be raised or lowered.

I have shown in the drawings my invention adapted to a coal-wagon and abox-lifting device; but it will be understood at the outset that it iscapable of application to a number of other devices for raising andlowering weights.

In the accompanying drawings, Figure l is a perspective view of myimproved mechanical movement. Fig. 2 is a longitudinal secy Fig. 3 is alongitudinal section of the device raised. Fig. 4 is a side view of acoal-wagon, showing my improved mechanical movement applied thereto.Fig. 5 is a view of a box-lifting de- Vice embodying my invention. Figs.6 and 7 are views showing the construction of my device when used inconnection with the boxlifter, Fig. 5; and Fig. 8 is a view of amodiication.

Referring to Figs. 1, 2, and 3 of the drawings, A is a frame havingundercut guideways c, a, in which slide the tongues b of the slide B.

D is a rod or shaft on which are cut two threads, one a right-handthread and one a left-hand thread. The rod or shaftD passes through alug c on the frame A and through a lug CZ on the slide B. The rightthreaded portion of the rod is adapted to the lug c, and the leftthreaded portion is adapted to the lug d on the slide B, so that on theturning of the screw-rod the slide will be moved longitudinally inrespect to the frame.

The frame in manyT cases will be mounted upon a bed E, and the end ofthe screw-shaft or rod D will be mounted in bearings in this bed, theframe sliding upon the bed, as indicat-ed,so that when the shaft isturned the two parts A and B will be moved toward or from each other.

The slide B has an inclined way B', on the serai No. 326,014. (Nomodel.)

inclined surface of which rolls a flan ged roller F, mounted on a shaftG, adapted to bearings on two links or arms II I-I, pivoted at h to theframe A.

On the shaft G is a supporting-frame I. In the present instance thissupporting-frame is pivoted to the shaft and pivoted iu two bearings JJ, so as to rock transversely. The bearings are secured to and supportthe device to be lifted, so that it will be seen that as the screw-rodis turned, and as the two parts A and I come together, the roller F willbe forced up the inclined plane B from the position shown in Fig. 2 tothat shown in Fig. 3, thus raising any article or device that may beplaced upon it. In Fig. 4 I have shown this mechanical movement asapplied todu mping-carts, the bearings .I J being secured to the body Mof the dumping-cart, so as to lift the said body a sufficient height toallow the contents of the cart to be dumped through the opening fm, andif the contents are to be dumped through one of the side openings m',forinstance, the frame is tilted transversely, and the4 bearings of theframe I, which are mounted on the blocks .I J, become theturning-points.

Suitable locking devices are secured to the rear or front portions ofthe cart to prevent the body from tilting when it is not required. Bysimply holding the rear end of the cart while the device is turned toraise the cart the body will be raised to an angle sufficient to allowthe contents to be dumped.

In Fig. 5 I have shown my improved mechanical movement mounted on atruck N, the truck having a standardN, and on the under side of theframe Ais a pin a adapt-ed to an opening in the standard and acting as apivot, so that the frame A can be turned independent of the truck. Thelinks II in this instance are extended, forming a gripping-frame II',thus dispensing with the frame I and bearing-blocks J and on the lowerend of the frame H is a lip f and on the upper portion of the frame is ashaft j, having a drum on which is wound a cord or chain 7c, having atits outer end a gripping-hook k. The shaft is provided with a handle j.

A box, for instance, is mounted on the truck, and if it is wished tolift the box a certain height to place it upon a wagon, for in- IOOstance, the box Wis moved so as to pass over the lip z' on the lowerportion of the frame H', and the hook 7c is placed, as shown, at theopposite edge of the box and the rope pulled taut, after which the shaftD is turned by a suitable handle d and the box raised from the positionshown by full lines in Fig. 5 to that shown in dotted lines in saidfigure. In this instance the frame A does not slide on a supporting-bed,as shown in Fig. 1, the slide B being the only moving part. This is notan objection, as it only changes the vertical lifting line, which is ona vertical line in Fig. 1, While in Fig. 5 the lift is in the arc of acircle.

Figs. 6 and 7 show details of the construction shown in Fig. 5.

In some instances the inclined Way may be reduced, as shown in Fig. 8,and above this inclined wayI pivot a link B2, having an open jaw b',into which the roller passes when it reaches the limit of the incline,and as the movement of the roller continues the link B2 is raised Auntilthe limit is reached. This arrangement I may use when it is requiredthat the article lifted shall be as near the base as possible withoutcutting in the bottom of said article to allow for the passage of theinclined Way-such, for instance, as dumping Wagons or carts.

The mechanical movement maybe applied to lifting-jacks, presses, andother devices Where great power is required. v

Itvvill be understood that instead of the slide carrying the inclinedWay and the frame carrying the links or arms the frame may be providedwith the inclined Way and the slide carry the links or arms, although Iprefer to use the construction shown in Fig. 1. The links or arms H haveside extensions f,which rest upon the frame, taking the strain off thepivot-pinsas clearly shown in Fig. 1.

It Will be understood thatin some instances the roller F may bedispensed with, and its shaft G would then rest on the inclined slide-Way, although a non-rotating block may be used instead of the rollerWithout departing from my invention.

I claim as my inventionv1. The combination of the frame A, the slide B,with a screw-shaft adapted to draw the slide upon the frame, With aninclined Way mounted on one of the parts and with links pivoted to theother part, and a shaft having a roller adapted to the way, so that onthe turning of the screw-shaft the roller will be moved up or down uponthe inclined way, substantially as described.

2. In a mechanical movement, the combination of the frame A, a slide B,having an inclined Way, with links pivoted to said frame A, and a shafthaving a roller adapted to said inclined Way with a screw-shaft formoving the slide on the `frame, so that on the movement of the slide theroller will be moved up or down the inclined plane, substantially asdescribed.

3. The combination, in a mechanical movement, of the frame, a slideadapted to said frame, an inclined Way on said slide, pivoted links, anda shaft carrying a roller With a screw-shaft having right and left handscrewthreads, one of said screw-threads adapted to the frame, the otheradapted to the slide, sub stantially as described.

2i. The combination of the bed E, frame adapted to slide thereon, With aslide adapted to Ways on the frame, an inclined Way earried by saidslide, with links pivoted to said frame and carrying at their upper endsa roller, with a screw-shaft having a right and a left hand threadthereon, one thread adapted to the frame and the other adapted to theslide, said shaft fixed as regards longitudinal movement in the bed E,so that on the turning of said shaft the slide and frame will be moved,substantially as described.

5. The combination of the frame, slide thereon having inclined Ways,ashaft having a roller adapted to said Ways and connected by links to theframe, with a frame I, pivoted to the shaft of the roller, and the saidframe being pivoted to blocksJ J, so that the device mounted on saidblocks can belongitudinally and transversely tilted,vsubstantially asdescribed.

6. The combination of the frame, the slide adapted thereto, an inclinedWay on said slide, a link pivoted 1o said Way and having a jaw,

With links pivoted to said frame, and a shaft carrying a roller, theWhole acting substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JOHN HELLINGS.

Vitnesses:

WILLIAM D. CONNER, HENRY I-IovvsoN.

IOO

